- Model NO.: SZ11 Series On-load-tap-changing
- Phase: Three
- Cooling Method: Oil-immersed Type Transformer
- Certification: ISO9001-2000, ISO9001, CCC
- Frequency Characteristics: 50-60Hz
- Brand: Keyuan
- Rated Capacity: 100kVA-2500kVA
- Product Name: 11kv 33kv 415V 100kVA Three Phase Transformer
- Tap Range: ±5 or ±2X2.5%
- Vector Group: Dyn11 or Yyn0
- Primary Voltage: 6kv/ 6.3kv/ 10kv/ 10.5kv/ 11kv/ 13.2 Kv
- Transport Package: Wooden Case
- Origin: China
- Application: Power, Electronic, Lighting
- Core: Core-type Transformer
- Winding Type: Two-winding Transformer
- Usage: Power Transformer
- Shape of Core: Ring
- Secondary Voltage: 0.4kv/10kv
- Color: Green
- Product Model: Sz11 Series on-Load-Tap-Changing
- Type: Oil Immersed
- Frequency: 50Hz ,60Hz
- Trademark: KEYUAN
- Specification: 100KVA-2500KVA
- HS Code: 8504
SZ11 Series On-load-tap-changing Power Transformer
1. Brief Description
SZ11 series on-load-tap-changing oil-immersed transformer is an upgraded product developed based on S11 series oil-immersed transformer. The voltage fluctuation and load change of power grid lead to fluctuation of output voltage of transformer during the running. If the voltage is too high or too low, the electric equipment will fail to work normally and even be burnt, and the insulation and efficiency of the transformer will be influenced. To ensure the variation of the output voltage within a reasonable range, voltage regulation is necessary. The product may operate the on-load tap changer manually or automatically to regulate the voltage when it is loaded, or realize remote voltage control through a controller.
2. Application Scope
The product applies to the users who require stable voltage and the voltage fluctuation of power grid is big.
3. Model Description
GB 1094.1, GB 1094.2,GB 1094.3,GB 1094.5,
IEC 60076-1:2000,IEC 60076-2:1993, IEC 60076-3:2000, IEC 60076-5:2006
,GB/T 6451,GB/T 20052,etc
GB 1094.1, GB 1094.2, GB 1094.3, GB 1094.5,
IEC 60076-1:2000, IEC 60076-2:1993, IEC 60076-3:2000, IEC 60076-5:2006,
GB/T 6451, GB/T 20052, etc
5. Normal Service Conditions
Height above sea level: Not greater than 1,000m;
Ambient temperature: Maximum temperature: +40ºC;
Maximum daily average temperature: +30ºC;
Maximum annual average temperature: +20ºC;
Minimum outdoor temperature: -25ºC;
Installation environment: ground acceleration caused by earthquake: ag<2m/s
1. On-load voltage regulation is possible, thus providing users with stable voltage output.
2. The low voltage adopts foil winding, thus enhancing the ability of the transformer to withstand the sudden short circuit; as the low voltage adopts copper foil winding, the electric field distribution of transformer is uniform. The low-voltage inner frame adopts formed hard paper tube, while the high-voltage outer half lap is wound with tasteless glass adhesive tape layer by layer. The compression pad adopts the laminated wood, thus enhancing the mechanical strength of the transformer. The transformer uses vacuum oil filling, which may totally eliminate the bubble in the coil, so as to improve the overall ability of the transformer to withstand the sudden short circuit.
3. The tank rim adopts stainless steel bolts, with beautiful appearance.
4. The sealing elements adopt formed parts, with the sealing reliability of the transformer enhanced.
Guangdong Keyuan Electric Co., LTD is a professional electrical manufacturer engaged in power transformer up to 35kv and other electrical equipment. For instance, amorphous alloy power transformer, dry-type transformer, oil-immersed transformer, with type, combined transformer substation, high and low voltage complete switchgear, rectifier transformer, electric furnace transformer, mining and other special purpose transformer. After nearly 10 years of development, Keyuan Electric has now become one of the major suppliers of Chinese state grid and southern power grid.
Keyuan electric is located in Nanhai district, Foshan city of Pearl River delta. As the forefront of reform and opening up, Foshan provides us convenient traffic conditions. Our Industrial park covers an area of 40000 square meters, and the annual design production capacity is almost 300 million dollars. The modern garden-like factory has several functions, for example production, technology development, staff living, learning and entertainment. Hereinto, production plant owns 2 spacious and bright body building, 11 workshops, and more than 260 sets of advanced production and testing instruments, which guarantee the high quality of our production; Perfect function design of the complex and the r&d center adopt ERP management system which provide an advanced platform for e-commerce, operations management, and the product innovation; At the same time,our quiet and graceful staff living area provides employees with a comfortable living environment which owns dine, entertainment, information, learning, and other
functions Currently, Keyuan electric has more than 30 senior engineering and technical talents, including 5 senior engineers. The strong technical force provide us with effective guarantee about product research and development. The company has got the certification of ISO9001:2008 quality management system, ISO14001 environmental management system and OHSAS18001 occupational health and safety management system. The amorphous alloy power transformer, dry type transformer, amorphous alloy class H dry type transformer, oil-immersed transformer, pre-installed type transformer, combined transformer, high and lowvoltage complete switchgear of our own successively won the "Guangdong famous brand", "Guangdong famous quality products", "China AAA + grade credit enterprise", "qualified supplier" and "excellent supplier" of the state grid and southern grid power electric equipment, "eagle enterprises " which was known as providing special support and training up to become listed companies. In 2009, Keyuan Electric was named as national hi-tech enterprise
Keyuan Electric always adheres to keep synchronized between management innovation and technology innovation, import modern management mode. At the same time of continuously expanding the sales network to the nationwide, our company is constantly trying to improve the internal management quality, optimize the management system.
"Science and technology, energy saving, green, safe, efficient" is always the core principle of our keyuan employees. We will always stick to it and become our customers' loyal service provider and guider of the electric industry.
If you are interested in our products, feel free to contact me!
Mobile: +86 13630156304
Guangdong Keyuan Electric Co., Ltd.